If a packet with a source address of 192.168.101.45 and a protocol of 23 is received on an interface with the following ACL, what will be the result?

The packet will be permitted because access control lists (ACLs) operate on a set of defined criteria to determine how traffic is managed on a network interface. In this case, we need to consider the configuration of the ACL applied to the interface.

For a packet to be permitted, the ACL must contain rules that explicitly allow traffic matching the conditions of the incoming packet. The source address of 192.168.101.45 falls within the range of private IP addresses, which are generally allowed unless specifically denied. Additionally, the protocol number 23 corresponds to the Telnet protocol.

If the ACL has a rule that permits Telnet traffic or generally allows traffic from the specified source address, then the packet will be permitted. If there are no deny statements that specifically target protocol 23 or the source address prior to an implicit deny all rule at the end of the ACL, the packet will successfully pass through.

Thus, the conditions met by this packet regarding the source address and the protocol lead to it being permitted by the ACL on the interface.